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Advances in Materials Science and Engineering
/
2018
/
Article
/
Tab 3
/
Research Article
Change of Parameters of the Koiwa–Hasiguti Dynamic Dislocation Relaxation in Nanostructured and Polycrystalline Zirconium after Severe Plastic Deformation and Annealing
Table 3
Change of the KH peaks parameters after annealing for 1 hour at 425 K.
Sample
Zr-0
Zr-01
Zr-02RT
Zr-02CE
Before
After
Before
After
Before
After
Before
After
T
P
, K
240
242 (+2)
232
236 (+4)
231
239 (+8)
226
236 (+10)
β
3.43
3.42 (−0.01)
2.97
2.65 (−0.32)
3.12
2.6 (−0.52)
2.88
2.3 (−0.58)
10
2
·
,
(
28
)
7.64
5.33 (−30.2%)
3.37
2.49 (−26.1%)
7.13
6.35 (−10.9%)
3.38
2.69 (−20.4%)
10
2
·
,
(
29
)
2.91
2.54 (−12.7%)
1.85
1.60 (−13.5%)
3.02
2.56 (−16.2%)
1.63
1.08 (−33.7%)
The changes in the corresponding values as a result of annealing are indicated in parentheses.